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Finding the Fourth Proportional to 41,772.70, 62,670.60 and 19,290.25

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Solution

The fourth proportional to 41,772.70, 62,670.60 and 19,290.25 is: 28,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,772.70 : 62,670.60 = 19,290.25 : x
  2. Step 2: Convert to fraction form
    41,772.70/62,670.60 = 19,290.25/x
  3. Step 3: Cross multiply
    41,772.70x = 62,670.60 × 19,290.25
  4. Step 4: Simplify right side
    41,772.70x = 1,208,931,541.65
  5. Step 5: Solve for x
    x = 1,208,931,541.65/41,772.70
  6. Step 6: Final answer
    x = 28,940.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.